Does wine glass size influence sales for on-site consumption? A multiple treatment reversal design

BMC Public Health

Research Article

Dominique-Laurent Couturier¹  Gareth J. Hollands¹  Eleni Mantzari¹  Theresa M. Marteau¹  Rachel Pechey¹  Marcus R. Munafò² 

[1] Behaviour and Health Research Unit, University of Cambridge, Cambridge, UK;MRC Integrative Epidemiology Unit (IEU), UK Centre for Tobacco and Alcohol Studies, School of Experimental Psychology, University of Bristol, Bristol, UK;

关键词: Alcohol;    Glass size;    Sales;    Choice architecture;   

DOI  :  10.1186/s12889-016-3068-z

 received in 2015-12-09, accepted in 2016-05-02,  发布年份 2016

来源: Springer

【 摘 要 】

BackgroundWine glass size can influence both perceptions of portion size and the amount poured, but its impact upon purchasing and consumption is unknown. This study aimed to examine the impact of wine glass size on wine sales for on-site consumption, keeping portion size constant.MethodsIn one establishment (with separate bar and restaurant areas) in Cambridge, England, wine glass size (Standard; Larger; Smaller) was changed over eight fortnightly periods. The bar and restaurant differ in wine sales by the glass vs. by the bottle (93 % vs. 63 % by the glass respectively).ResultsDaily wine volume purchased was 9.4 % (95 % CI: 1.9, 17.5) higher when sold in larger compared to standard-sized glasses. This effect seemed principally driven by sales in the bar area (bar: 14.4 % [3.3, 26.7]; restaurant: 8.2 % [−2.5, 20.1]). Findings were inconclusive as to whether sales were different with smaller vs. standard-sized glasses.ConclusionsThe size of glasses in which wine is sold, keeping the portion size constant, can affect consumption, with larger glasses increasing consumption. The hypothesised mechanisms for these differential effects need to be tested in a replication study. If replicated, policy implications could include considering glass size amongst alcohol licensing requirements.Trial registrationISRCTN registry: ISRCTN12018175. Registered 12th May 2015.

【 授权许可】

CC BY   
© Pechey et al. 2016